By James Cormack It took some time for the Premier League’s manager merry-go-round to kick into gear last season, with Sheffield United’s Paul Heckingbottom the first to receive his marching orders on 5 December. In 2022/23, 16 managers either left or lost their jobs. What will it be in 2024/25? A growing impatience at the highest level means new bosses have far less time to win supporters and hierarchical figures over, while stingy financial rules and the monster payouts required to part ways with managers possibly meant fewer clubs were keen to pull the trigger last season. Thus, just five c…